Gas Milage

[blakedanatural]

Hello All,
When I purchased my gt premium in may 2015 I would fill up and I got 319 miles till empty. Average miles would say 19.6. Now in November 2016 when I fill up I get 289 sometimes 302 and avg miles is 19.3. What is happening?
Thank you for your help.
Blake

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[jasonstang]

Tire pressure. Winter blend gas. Cold temperature.

 

[GT Pony]

0.3 MPG difference is in the noise level ... you can't tell what's happening.

Now if it was a 3 MPG difference, then you might be able to attribute it to something like "tire pressure, winter blend gas, cold temperature" like mentioned above and also driving style.

 

[SYK]

Range changes every fill up depends on how you drove during last fill up

 

[keltymd]

not to mention with the ethanol blend you could get one that has 5% ethanol and another with 10%. Ethanol has a net 0 energy gain for the gas. With E10 your millage is about 10% less than pure gas. I know I know it kicks butt for octane and making power but it hurts your overall gas millage.

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